Abstract

MARTOS BENITEZ, Frank Daniel et al. Preoperative Betablockers in non cardiac surgery: recommendations base don evidence. Rev cuba anestesiol reanim [online]. 2014, vol.13, n.1, pp. 31-53. ISSN 1726-6718.

Introduction: preoperative cardiac events are frequent disorders associated to the increase of mortality. b- blockers have been used for the prevention of these complications. Objective: determine the value of present evidence about the efficacy/security of the use of b- blockers in the preoperative period in non cardiac surgery for the prevention of cardiac complications. Methods: it was looked up in MEDLINE, Cochrane Library and CINAHL controlled clinical trials (2000-today) and the recent meta- analysis (2008- today) which evaluated the efficacy of preoperative b- blockers in non cardiac surgery, in terms of cardiac events and side events. Results: preoperative b-blockers diminish the risk of myocardial infarction, though the reduction of other cardiac events, the cardiac mortality and mortality in general is contradictory. The results depend on the clinical and surgical risks of the patients included. With the exception of esmolol, all b-blockers studied are associated to an increase of side events risks (bradichardia, hypotension). Conclusion: the preoperative administration of b-blockers adjusted to the hear rate and blood pressure is reasonable in patients with high surgical risk, apart from the category of clinical risk. Its use must be considered in the rest of the patients, especially if they are tachicardic in a prolonged way. In patients who previously takeb- blockers, the treatment must continue Hill the postoperative period.

Keywords : b- blockers; non cardiac surgery; preoperative cares; cardiac complications; cardiac events; acute myocardial infarction.

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